Porosimetro de mercurio

AutoPore IV Series
Automated Mercury Porosimeters

AutoPore IV Series

Automated Mercury Porosimeters

T H E
B e h i n d

C O M P A N Y
t h e P r o d u c t Key Advantages Of Mercury Porosimetry
Mercury porosimetry can determine a broader pore size distribution more quickly and accurately than other methods. It can be used to characterize pores ranging from 0.003 µm to 360 µm using asingle theoretical model. The data produced (mercury intrusion volume at various pressures) can be used to calculate numerous sample characteristics such as pore size distributions, total pore volume, total pore surface area, median pore diameter, and sample densities (bulk and skeletal).

Reputation Micromeritics has earned a reputation for manufacturing only high-quality products in the fieldof particle technology and for the high level of support we provide to the users of our products. Experience and Stability Micromeritics has been manufacturing particle technology instrumentation for over 38 years. We have grown to be one of the world’s largest manufacturers dedicated exclusively to the field of particle technology, and we continue to grow. We have a long, proud history and arewell prepared for the future. Expertise of Staff Micromeritics employs a staff of widely published research and applications scientists who contribute to the field of particle technology and support our users in making their own contributions. Our scientific staff includes Ph.D. and Masters level practitioners who have extensive experience in their respective fields including physical adsorption,chemical adsorption, particle sizing, and materials sciences. Support Network Micromeritics has a worldwide network of over sixty direct offices and distributor offices staffed with personnel trained in applications and service support. This is our “front line” of support. Behind them is the corporate staff of Micromeritics experts. Operations, applications, and service support are available byphone, fax, and e-mail, and more likely than not, in the local language. High-Quality Data Micromeritics’ instruments are known for producing extremely high-quality measurements. We stand firmly behind our published specifications and will gladly demonstrate the performance of our products by way of an evaluation analysis on the sample of your choice. Dedication to Quality Micromeritics is certifiedunder the International Organization for Standardization and meets all requirements under ISO 9001 for quality management and quality assurance standards. Our instruments meet the CE requirements of the European community. Award-Winning Performance Micromeritics is the recipient of numerous awards and recognition for product innovations. Not only do we have an impressive array of product awards, wealso have been awarded recognition for industry support and for the exceptional quality of our operator manuals.

Relating Mercury Intrusion Pressure And Pore Size
Mercury porosimetry uses the Washburn equation to describe the intrusion of mercury into a porous material as a function of pressure applied to the mercury. Mercury is used because it is non-wetting and non-reactive for most solidsurfaces. It also has a contact angle of about 130° for most solids and therefore requires the application of pressure before it will intrude into pores. The AutoPore IV software allows you to enter the precise angle of contact between mercury and a solid sample surface. (For determining the exact contact angle, Micromeritics offers the Contact Anglometer Model 1501.) You can enter values for theadvancing contact angle (intrusion), receding contact angle (extrusion), and mercury surface tension either before or after the analysis as need dictates. To cause mercury to intrude sample pores, the AutoPore IV increases the pressure on the mercury inside the penetrometer (sample holder). The pressure required to force mercury into the pores of the sample is inversely proportional to the size...